Another Set of Independent Lead and Copper Rule Testing Results for Flint, MI

90%’ile = 3.9 ppb in Flint Tier 1 homes.

Dr. Susan Masten (Michigan State University) has published results of independent testing in Flint, MI for a 7-month period starting August 28 2017.  The 90%’ile lead is 3.9 ppb, for Tier 1 homes, completely consistent with official LCR data from the State of Michigan and our own Flintwaterstudy citizen science sampling in 2017-2018. Read her report below:

Download (PDF, 593KB)

2 thoughts on “Another Set of Independent Lead and Copper Rule Testing Results for Flint, MI

  1. It’s great to see such low results. I have one question. In the table, when “service line material” is reported as “Lead-copper” or “lead-galvanized” what exactly does that mean?

  2. Len,

    Where the service line materials are reported as X-Y, X is the material on the public side, Y is the material on the private side.

    Susan Masten

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